Solve Quadratic Using Square Root

• ±81
• ±9
• ±3
• No real solution

• {49,-49}

• {8,-8}

• {7,-7}

• No Solution

• {6.78,-6.78}

• {8,-8}

• {7,-7}

• No Solution

Solve using square roots.

• ±81

• ±9

• ±3

• No real solution

x² = 16

• ± 4

• ± 8

• 4

• 8

Solve by taking square roots:
5m² + 1 = 6

• m = 0

• m = 1 or -1

• m = √7

• m = 7/5 m = -7/5

Solve for x
x² - 3 = 78

• -9,9

• 9

• -9

• -√75, √75

Solve by taking square roots:
5b² - 4 = 41

• b = 9, b = -9

• b = 3, b = -3

• b = 8, b = -8

• no solution

Solve by taking square roots:
k² - 6 = 43

• k = √37

• k = 37 or - 37

• k = 7, k = -7

• no solution

x² + 4 = 68

• ± 8

• ± √8

• 8

• ± 64